Relative genotypic frequency after selection

TLS Online TPP Program

#Id: 9646

#Unit 4. Cell Communication and Cell Signaling

Active Raf phosphorylates MEK on one or two serine residues in its activation loop, activating MEK kinase activity

TLS Online TPP Program

#Id: 169

#Unit 5. Developmental Biology

The optic vesicle secrete two paracrine factors:

 BMP4

 FGF8

TLS Online TPP Program

#Id: 6228

#Unit 8. Inheritance Biology

Complete dominance

Type of dominance in which the same phenotype is expressed in homozygotes (AA) and in heterozygotes (Aa)

TLS Online TPP Program

#Id: 9657

#Unit 4. Cell Communication and Cell Signaling

Negative feedback regulation by MAP Kinase

activated MAP kinase triggers an increase in the expression of dual-specificity phosphatases (DUSPs), particularly DUSP6.

TLS Online TPP Program

#Id: 6004

#Unit 3. Fundamental Processes

Licensing factor is necessary for initiation of replication at each origin. Licensing factor is present in the nucleus prior to replication, but is removed, inactivated, or destroyed by replication. Initiation of another replication cycle becomes possible only after licensing factor reenters the nucleus after mitosis.